A method of controlling at least one of a first robot and a second robot to collaborate within a system, the first robot and the second robot being physically separate to one another, the method including: receiving sensed data associated with the second robot; determining position and/or orientation of the second robot using the received sensed data; determining an action for the second robot using the determined position and/or orientation of the second robot; and providing a control signal to the second robot to cause the second robot to perform the determined action to collaborate with the first robot.

A system and method for detection of coking in a fuel. The system including a fuel system for delivery of fuel, a fuel contamination sensor having a contamination detection sensor with input and output transducers immersed in the fuel, a controller in operable communication with the fuel contamination sensor, the controller configured to execute a method for detection of coking in fuel. The method including generating an excitation signal for the contamination detection sensor, receiving at a controller operably connected to the contamination detection sensor, a sensor output signal from the output transducer, comparing the sensor output signal with the excitation signal, diagnosing a condition of the fuel based on a the comparing, and indicating a condition of coking based on the diagnosing. The system also includes an enunciator to indicate the detection of coking in the fuel.

A fluid system may comprise a fluid passage comprising a passage inlet and a passage outlet, through which fluid may flow by entering the passage inlet as an inlet flow and exiting the passage outlet as an outlet flow; a bypass valve comprising a bypass inlet and a bypass outlet, the bypass inlet being in fluid communication with the passage inlet, wherein the bypass valve further comprises a piston coupled to a spring; and a position sensor coupled to the bypass valve and configured to detect a position of the piston in the bypass valve. The spring may retain the piston in a rest position, and the spring and the piston may be configured to block the fluid from passing through the bypass outlet in response to the inlet flow exerting a pressure below a bypass pressure threshold.

A system and method for detection of coking in a fuel. The system including a fuel system for delivery of fuel, a fuel contamination sensor having a contamination detection sensor with input and output transducers immersed in the fuel, a controller in operable communication with the fuel contamination sensor, the controller configured to execute a method for detection of coking in fuel. The method including generating an excitation signal for the contamination detection sensor, receiving at a controller operably connected to the contamination detection sensor, a sensor output signal from the output transducer, comparing the sensor output signal with the excitation signal, diagnosing a condition of the fuel based on a the comparing, and indicating a condition of coking based on the diagnosing. The system also includes an enunciator to indicate the detection of coking in the fuel.

A fluid system may comprise a fluid passage comprising a passage inlet and a passage outlet, through which fluid may flow by entering the passage inlet as an inlet flow and exiting the passage outlet as an outlet flow; a bypass valve comprising a bypass inlet and a bypass outlet, the bypass inlet being in fluid communication with the passage inlet, wherein the bypass valve further comprises a piston coupled to a spring; and a position sensor coupled to the bypass valve and configured to detect a position of the piston in the bypass valve. The spring may retain the piston in a rest position, and the spring and the piston may be configured to block the fluid from passing through the bypass outlet in response to the inlet flow exerting a pressure below a bypass pressure threshold.

The present disclosure is directed to a method for cleaning gas turbine engine components using an acoustic emitter. More specifically, in one embodiment, the method includes positioning the acoustic emitter at a cleaning location of a component of the gas turbine engine. For example, the cleaning location is typically characterized by having a build-up of foulants on a surface thereof. Thus, the method includes emitting, via the acoustic emitter, acoustic waves at a predetermined frequency towards the cleaning location of the component so as to disperse the foulants.